The author of The Silver Searcher[1] has some blog posts about his efforts at optimizing his own grep-like tool. There's nothing wrong with good ole grep, but

The author of The Silver Searcher[1] has some blog posts about his efforts at optimizing his own grep-like tool. There's nothing wrong with good ole grep, but on boxen I spend any significant time on, I always install ag. The integration with Emacs provided by ag.el[2] is awesome too! [1] https://github.com/ggreer/the_silver_searcher#how-is-it-so-fast https://github.com/ggreer/the_silver_searcher#how-is-it-so-f... [2] https://github.com/Wilfred/ag.el https://github.com/Wilfred/ag.el